• Food Science and Preservation
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• v.5 no.3
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• pp.231-238
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• 1998

The effects of temperature(0, 5, 10 $^{\circ}C$), sawdust removal in root part and packaging conditions on the respiration and keeping qualities were evaluated. Higher respiratory activity, weight loss and stipe elongation were observed at higher temperature. Removal of sawdust part slowed down the rate of stipe elongation with little effect on the respiration rates, and therefore improve the quality preservation. The modified atmosphere packaging of 100g mushroom using hermetically sealing by 30 $\mu\textrm{m}$ polypropylene (CPP) and low density polyethylene (LDPE) films were effective in preserving the quality such as visual appearance and Hunter L value, and reducing weight loss at 0$^{\circ}C$, 5$^{\circ}C$ and 10$^{\circ}C$ compared to perforated packages.

• Journal of the korean academy of Pediatric Dentistry
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• v.24 no.4
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• pp.727-733
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• 1997

Autotransplantation is a procedure which transplants teeth from the original position to other positions in the same individual. It is classified surgical reposition by intraalveolar autotransplantation and transalveolar autotransplantation. The prognosis for successful autotransplantation is dependent on a number of factors such as root development, surgical technique, patient's age, endodontic treatment, time and type of splinting, preservation of periodontal ligament and storage medium. The most important factor is preservation of periodontal ligament. The cause of the failure of transplantation include damage of the transplant during removal from deep palatal malposition, poor regeneration of the bone around the transplant and chronic periodontal infection. In case I, Impacted maxillary canine for which surgical exposure and orthodontic treatment was impossisle was transplanted. After 2 weeks, It showed periapical radiolucency and external root resorption. So, endodontic treatment was done. One year later, permanent filling was done with gutta percha. In case II, Transpositioned maxillary central incisor was transplanted after extraction of impacted mesiodens. Pulp vitality was maintained during 5 months without other clinical symptons.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.53 no.1
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• pp.21-27
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• 2008

Germination of soybean and growth of its sprouts should be affected by storage condition and period of seeds. The experiment was conducted to examine the effects of period stored at cold room and storage conditions on their growth and morphological characters. The seeds, cv. Pungsannamulkong, were stored at $3^{\circ}C$ for 1 or 2 years, and by the three different storage methods of indoor, cold room, or transfer of indoor to cold room. Compared to the seeds stored for 2 years, one-year seeds had higher rate in hypocotyl of longer than 7 cm, root and hypocotyl lengths, and more hypocotyl fresh weight although there was not significant difference in total fresh weight. In the storage method experiment, one-year seeds stored at cold room and by transfer of indoor to cold room showed better growth, more lateral roots and fresh weights, although only two-year seeds stored at cold room did the same response, indicating that growth of soybean was affected by period and method of seed storage.

• The Korean Journal of Food And Nutrition
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• v.17 no.1
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• pp.18-24
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• 2004

Nutritional characteristics and antioxidation effects of Yakju brewed with natural plants(fine tree leaves, bamboo leaves, ginger, cinnamon and licorice root) were tested. With regard to the contents of phenolic compound, Yakju brewed with natural plants was about 1.7 times higher than Yakju which were not brewed with natural plants. In Yakju brewed with natural plants, lactose content was the highest but maltose was not detected. Minerals were detected in the order of P>K>Mg>Ca>Fe and the content of Fe and Na had a little changes during its 30 days storage. Amino acid contents were getting lower during storage. They were about 28% lower compared 3 days with 30 days storage. Electron donating ability of Yakju and its diluents were tested by DPPH. It was found that the electron donating ability of Yakju was lower as the dilution ratio got higher and as the storage terms got longer. Also, Yakju brewed with natural plants has 95.7∼96.7% of electron donating ability during 30 days storage without regard to its dilution ratio. Superoxide dismutase(SOD) like activity was in inverse proportion to dilution ratio and storage days. The highest SOD like activity was shown 51.5% and 53.9% in 3 days storage Yakju brewed with natural plants and in its 2 times diluents, respectively.

• Applied Biological Chemistry
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• v.5
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• pp.33-38
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• 1964

As a part of the survey on the chemical compositions of Korean Sweet potatoes, the changes of chemical compositions of Suwon No. 118 and Suwon No. 147, which are representative varieties of sweet potatoes in Korea, were studied during storage. The result of the study showed the followings. 1. The moisture content of the both varieties were fairy uniform with higher value of Suwon No. 147 than another. 2. The starch content and crude starch yield in the stored root tuber were shown to be considerable uniform except decrease at the earlier part of storage and in January. 3. Reducing sugar content of them showed increase at earlier part, then almost uniform except gradual decrease in later part of the storage. 4. The content of total soluble sugar were gradually increased at the earlier part, then became almost uniform at the later part of the storage. 5. The sucrose content showed gradual increase except at the earlier part of the storage in which both varieties showed different feature in decrease of the content. 6. The content of crude protein and soluble protein were almost uniform throughout the storage.

• Korean Journal of Medicinal Crop Science
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• v.23 no.4
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• pp.319-323
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• 2015

The objective of this study was to establish the optical storage condition in cutting slips of Lycium chinense Mill. We investigated the different influential growth factor of this plant including two soil types (soil and vermiculite) and storage methods (gauze, parafilm, vinyl, and paper). Our result revealed that the formation of axillary bud was highest ($4.8{\pm}0.75ea$) from the cutting slips stored in vinyl and vermiculite treatment. Root length was long ($2.8{\pm}0.13ea$) in parafilm storage using soil. Maximum plant height was $135.33{\pm}12.81cm$ with gauze storage using vermiculite. The number of leaves was maximum ($130{\pm}2.5ea$) at 90 days from the cutting slips of gauze storage using vermiculite. Highest number of fruit was harvested ($149{\pm}16.05ea$) from the cutting slips stored in parafilm and grown in vermiculite. It can be concluded that the storage treatment and soil type influence the affecting to general growth of Lycium chinense Mill.

• Journal of Bio-Environment Control
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• v.23 no.4
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• pp.356-363
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• 2014

This work was conducted to investigate the field growth and yield of the sweetpotato (Ipomoea batatas) slips grown under different light emitting diodes (LEDs). Sweet potato cuttings of 3 cultivars ('Matnami', 'Shinhwangmi', and 'Yeonhwangmi') were cultivated under fluorescent lamp (FL) and several LEDs (PPF $150{\pm}5{\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$ at 20cm distance) in deep flow culture system for 20 days. The plants were acclimatized under sunlight for 10 days, and then cuttings (30cm length) were planted with $75{\times}25cm$ planting density on June 10th, covered with black vinyl film during growth period. Length and diameter of vine, number of root were excellent in the red plus blue (7:3) LED than the other treatments. At 30 days after planting, the survival rate in red plus blue (7:3) LED was significantly higher than that in FL and red LED, and it was not different among cultivars. Vine length, vine diameter, and number of node were not significant among LED light qualities and cultivars. After 120 days in the field cultivation, vine length, vine diameter, number of node, number of branch, and fresh weight of shoot were not significant among LED light qualities, but those except the number of branch showed significant differences among cultivars. Yield characteristics among LED light colors were not significant, but weight of storage root per plant, mean weight of storage root, and yield showed significant differences among cultivars. The yield per 10a in 'Matnami', and 'Yeonhwangmi' was significantly higher than that in 'Shinhwangmi'.

• Korean Journal of Food Science and Technology
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• v.32 no.3
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• pp.681-690
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• 2000

For scientification of commercial fermented radish products the study on physicochemical and processing properties of various radish cultivars should be proceeded and needed. Moisture contents of 3 parts of root ranged from 91.3 to 94.0%. Although, the upper part showed less content of moisture and ash than other parts, the upper part contained higher amount of crude protein and soluble solids. The sugar contents of Baekkwang grown on spring was the lowest$(5.0^{\circ}Brix)$ and that of Taebaek grown on autumn was the highest $(6.6^{\circ}Brix)$ among 6 cultivars. Significant difference of acidity was shown in various cultivars but not in each parts. The most abundant soluble sugars in radish root was glucose ranging from 15.8 to $27.3\;{\mu}mole/g\;f.w.$ fresh weight, f.w. and followed by fructose ranging from 16.4 to $23.1\;{\mu}mole/g\;f.w.$ However, the content of sucrose ranging from 0.7 to $2.7\;{\mu}mole/g\;f.w.$ was the lowest compared to others. Hardness of fresh root was the highest in Taebaek $[93.4{\sim}156.9N/m^2(\times10^3)]$, followed by Dongja and Chudong, and the lowest in Baekkwang. Changes in rigidity of roots during brining were determined. Although the rigidity was drastically reduced during initial 60 min., it was reversely increased during further storage. Sensory acceptabilities of Taebaek and Dongja were the best among 7 cultivars. Optimal time of radish fermentation at pH of 4.2 and acidity of 0.6% was between 24 and 28 days of storage.

• International Journal of Fuzzy Logic and Intelligent Systems
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• v.13 no.1
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• pp.31-38
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• 2013

Patients with heart disease need long-term monitoring of the electrocardiogram (ECG) signal using a portable electrocardiograph. This trend requires the miniaturization of data storage and faster transmission to medical doctors for diagnosis. The ECG signal needs to be utilized for efficient storage, processing and transmission, and its data must contain the important components for diagnosis, such as the P wave, QRS-complex, and T wave. In this study, we select the vertex which has a larger curvature value than the threshold value for compression. Then, we reconstruct the compressed signal using by radial basis function interpolation. This technique guarantees a lower percentage of root mean square difference with respect to the extracted sample points and preserves all the important features of the ECG signal. Its effectiveness has been demonstrated in the experiment using the Massachusetts Institute of Technology and Boston's Beth Israel Hospital arrhythmia database.

• Korean Journal of Pharmacognosy
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• v.19 no.3
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• pp.201-207
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• 1988

Samples of red ginseng, which had been manufactured and packaged by the Korean Monopoly Corporation, were stored at ambient temperatures and humidities ($12{\sim}28^{\circ}$ and $55{\sim}68$ percent) for one to nine years to examine their overall quality stability. The proximate compositions, contents of 50% ethanol and water extracts of the samples and the TLC and HPLC patterns of ginsenosides in the samples remained almost unchanged in all cases. The lipids and fatty acids in the samples, which are otherwise susceptible to oxidation, were stable judged on the basis of the changes of the TLC and GLC patterns of the lipids and fatty acids. It was also found that polyunsaturated fatty acids such as linoleic(C18:2) and linolenic and(C18:3) present in the samples had been very stable during the long storage periods. It, therefore, seems that the autoxidations of the lipid and fatty acids of red ginseng were prevented by antioxidative compounds which will be progressively formed in red ginseng through non-enzymatic browning reactions during manufacturing process and long-term storage.